Scaffold.



G. CURLEY.

S C A F F 0 L D (Application Mei-Apr. 12, 1900.)

No. 657,396. Patented Sept. 4, I900.

' (Nd Model.)

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UNITED STATES PATENT OFFICE.

GEORGE CURLEY, OF sALT LAKE oITY, UTAH.

SCAFFOLD.

SFEGIFIGATION forming part of Letters Patent N 0. 657,396, datedSeptember 4, 1900.

Application filed April 12, 1900. Serial No. 12,607. (No model) 10 allwhom it may concern:

Be it known that I, GEORGE CURLEY, residing at Salt Lake City, in thecounty of Salt Lake and State of Utah, have invented a new and ImprovedScaffold, of which the following is a specification.

My invention relates to improvements in that class of portable:scaffolding comprising, essentially, a'pair of standards, in each ofwhich is held for verticalmovement brackets for supporting the masonsplatform, which also includes suitable elevating mechanism capable ofbeing manipulated by the mason for elevating his platform as may bedesired.

In its general nature my invention comprehends a simplified arrangementof platform, supporting brackets slidable upon the standardsand incombination therewith supplemental bracket members capable of beingreadily suspended from the-masons-plttform supporting brackets andhaving a simple arrangement of abutmentshoes or blocks adapted to engagethe standards, freely slidable on the outer surface thereof and adaptedto serve as positive bracing means for holding the said supplementalbrackets (intended to support the hod-carriers platform securely. inposition without the aid of screws, bolts,

and other like securing means.

My invention also includes in its complete make-up a form of bracketslidable vertically within a slotted standard, the front end of which ispeculiarly constructed to form a practical and simple supporting meansfor detachably-heldendwise-proj ecti'n g brackets adapted to supportcorner or return-platform sections and having its rear or'oth'er endconstructed to support a pendently-hunghodcarriers-platform-supportingbracket;

In its more subordinate features my in vention consists in certain novelcombination of parts and details of construction, all of which will befirst described and then specifically. pointed out in the appendedclaims, reference being had to the accompanying drawings, in which-Figure 1 is a perspective view of a scaffolding constructed inaccordance with my invention. Fig. 2 is a transverse section of the sameon the line 2 2 of Fig. 1. Fig. 3 is a detail section taken practicallyon the line 3 3 of Fig. 2. Fig. 4 is a horizontal section of one of thescaifolding ends, taken on the line 4 4 of Fig. 2. Fig. 5 is an end viewof the hod carriersscafiold supporting platform. Fig. 6 is a perspectiveview of one of the return-platform brackets hereinafter referred to.Fig. 7 is a detail view of one of the center-board bridge-supportingmembers. Figs. 8 and 9 are detail views of modified forms of brackethereinafter referred to,and Fig. 10

is a view of a further modification of the bracket hereinafterdescribed. a

Referring now to the construction illustrated in the drawings, in whichlike numerals indicate like parts in all the figures, the same includesin its make-up a pair of standards l 1, which consists of two like sidemembers, the upper ends of which are braced by 'a transverse rod 2,having a head 2 at one end, itsother end terminating in a nut-receivingportion 2 the said rod also acting as the upper support for theelevating devices presently referred to. The lower ends of the standardmembers are joined with the transverse foot portions 3 and braces 3,that form a solid base for the said standards. Upon the inner side eachstandard member has a vertical tongue 1, that extends nearly the fullheight of the standards, and the said tongues form guides for steadyingthe slidable brackets 4, as best shownin Fig. 4.

Within each standard is held for vertical movement a bracket member 4,which I shall hereinafter term the masons-scaifold bracket, and each ofthe brackets 4 comprises a pair of timbers 4, held in a like verticalplane and having a width to snugly fit the space between the twostandard members in which they slide and to steady the movement of thesaid brackets 4 in their vertical movement, and also to more firmly holdthem to their adjusted positions the fixed vertical edges of the saidbrackets are grooved, as indicated at 4 to engage the tongue 1 of thestandard members, (see Figs. 2 and 3,) and to still further hold thesaid brackets on the standards the outer sides of the two timbers 4 areconnected by vertical bars 4*, so spaced apart'as to snugly ride uponthe front and rear edges of the outermost one of the two members thatconstitute the standard, an additional holding meansin the nature of acap-board 4 being also provided, which g v I 657.390,

, board is nailedto the outeredges of the bars 4 to closely lap ortravelover the outer face of the outermost one of the standardmembers, asclearly shown in Fig. 1; The front .ends of the timbers 4 are joined byshort vertical bars 4:, which add strength to the brackets and also formsockets 4 for the heel portion 5 of corner or return-platform brackets5, one of which is shown in Fig. 6,

and consists of the short horizontal beams 5 thevertical bars 5, and theheel portion 5,

before referred to.

By constructing the brackets 4 in the manner described. and providingthe brackets 5 a simple, quickly-adjusted, safe, and effective means isproduced for forming supports having end or corner retu rn-scaifoldsections. Thevrear ends of the brackets 4 are left open, and the-saidends are braced by the diagonal bars 4'. The'object in leaving theextreme ends open is to permit of a quick attachment of thehod-carriers-platform-support+ ing brackets. "These brackets eachconsist of a base member 6,'a vertical member 6*, projected upward, anda forwardly-projecting brace-barfi that connects-with the member 6, abearing block or shoe 6 also forming a part of the brackets 6, the, samebeing'secured upon the front end of the base-timber 6, said shoe havinga width'at least equal that of the width of one of the standards.

To the upperend of themember 6? is made fast a FI-shaped iron or clip 6,the function of'which-will be readily understood by referring to Fig.1.f a a Any suitable means may be provided for lifting thescaffold-supporting brackets operative from themasons scaffold, but Iprefer to use the means illustrated in the accompanying drawings, whichconsist of a'gripblock and tackle, and the upper or supporting' block 7,having a hanger-hook 8, that en of the standards.

gages and is hung upon the hook 2 at the top 8 designates a grip-blockof any suitable construction. i

In the practical application of my invention planks 9 are laid upon thefront and rear extensions of the brackets 4 to brace the masonsscaffold, and the said boards 9 extend beyond the inner edges of thestandards, as shown, and to close up the space between the innermostlong planks X X a shorter board 10 is. held in the said space flush withthe remaining planks, which'board is supears 11*, that rest upon theupper face of the adjacent edges of the planks X X, asclearlyillustrated in Fig. 1.

The boards having been properly laid upon the masons brackets 4 brackets4 being supported thereon by the rods'12, that pass centrally throughthe upper and lower members of the brackets 4, as best shown in Figs. 2and 3, elevates the masons platform to the desired height, it beingunderstood thatso long as the masons scafiold is not shoulder-high thebrackets 6 need not be used. Now after the masons 'scafiold has beenlifted so high that a hodcarrier cannot conveniently throw thematerial-thereon, the brackets 6 are hung onto the rearfr'ee endof thebrackets 4, and with their shoeportions made to bear firmly against therearfaces of the standards 1, it being manifest that by thisarrangementof parts it is impossible forthe hod-carriersscafiold tobecome loosened from. the brackets 4. under ordinary uses. Furthermore,by forming the hod-carriers brackets in the manner shown I am enabled tosecure a very strong and effective support for the hod-carriers scaffoldand'gat the same time effectively brace the same againstseparatingfromthe brackets 4, making it, as it Were,'a very simple,quicklyadjustable, and effective means for connecting thehod-carriers-scafiold brackets to the .masons-scaifold brackets withoutthe use' of bolts, nuts,- and screws, or other fixedly-held fasteningmeans.

corner and support a platform thereon, it is Onlynecessary to inserttheheel portion of the brackets 5 into the opening made at the frontends of the brackets 4;.

' My invention'is exceedingly simple, and

adapted for masons and bricklayers uses, &c. ,I desire it understoodthat the same with little or no modification "can be readily employedas-scaflfold for ordinary uses, and, for example, for light uses aroundhouses,stores, &c.,and the special bracket,such as illustrated by 8,maybe pro'vided,which consists of a single transverse timber 14 and acentral pendent member 14, having grooves 14 in its edges to engage withthe tongues upon the inner sides of the standards having forwardly andrearwardly' inclined brace-bars,as shown.

In Fig. 9 is illustrated a further modification of the scafiold, whichis especially adapted to be used in place of the latter and may be "madeof suitable light material.

From the foregoing description, taken in connection with theaccompanying drawings,

,it is thought the manner in v which my imported upon -shaped hangers11, the ends of which terminate in horizontally-extending 1 understoodthat the hod carriers scaffold is supported sufiiciently below themasons scaffold, so that the bod-carrier can. throw the (When it isdesired to makea return at the while I have describedit as beingespecially material shoulder-high onto the masons scafkiln the upperbrick can be lowered by means necessary at each end for properlysupportplatform adapted to be detachably hung from fold. Furthermore, inpractice the hod-carriers scaffold projects sufliciently out from themasons scaffold as to permit the ready use with the said hod-carriersscaffold of a runway.

Fig. 10 illustrates another form of bracket adapted for use with'myarrangement of elevatin g mechanism. This bracket (indicated by 20 inthe drawings) has its ends arranged to project upward from thescalfold-supporting beams 20 instead of downward, as is the case withthe bracket-s 4, and the guide or lift studs 20 of thesaid brackets 20are braced at the sides by diagonal timbers 22. In this form of bracketthree yoke-frames 11, are

ing the scaffold-planks, as clearly shown in Fig. 10. This type ofbracket is especially useful for elevating wheelbarrows carrying brickor other material, as the scaffold-platform can be brought downflushwith the ground to permit the wheelbarrows being readily run on oroff, and thereby dispense with runways.

Among other advantages my improved scaffold and elevating devices willbe found useful in brick-yardsfor brick-setters piling green brick andwhen discharging the burned of one section of my scaffolding, saving, asit were, the service of the man who usually passes the brick from oneworkman to another.

While I have not so illustrated it, the form of brackets shown in Figs.8 and 10 may be equipped with the end guide or stay members 45 to steadythe brackets as they slide up and down the standards 1.

Having thus described my invention,what I claim, and desire to secure byLetters Patcut, is

1. A scaffold, comprising in combination a pair of supporting-standardsand masonsplatform-carrying brackets vertically movable on eachstandard, means for elevating the said brackets, each of the saidbracket-s having a forwardly-extending portion and arearwardly-extending portion, a hod-carriers the masons platform, saidhod-carriers p1atform including a supporting-bracket having means forhanging pendently from the masons-platform bracket, and a shoe adaptedto slidably engage the standard, as set forth.

2. In a scaffold, the combination with the standard comprising two.parallel members each having avertical tongue-piece on the inner face,a hanging bolt or loop mounted in the upper end of the two members; of abracket consisting of upper and lower horizontal timbers joined to movetogether, said timbers being adapted to extend transversely between thestandard members and having grooves to engage the tongues on the saidmembers, the lift-rod 12, and the block-andtackle devices connectingwith the lift-rod 12 l tachably hung from the masons-platform supportingbracket, as specified.

4:. In a scafiold as described, the combination with the standard formedof two parallel members having a suitable base connection, and ahanger-rod at the top; of a bracket consisting of the two bars 4 4,adapted to extend a transversely between the standard members,

the vertical bars 4 4) connecting the bars 4, and forming guides toengage the edges of the standard; the lift-rod 12 and the blockandtackle devices connected to' the liftrod and to the top hanger all beingarranged substantially as shown and described.

5. The hereinbefore-described scaffolding, consisting of a pair ofstandards each formed of parallel members connected to the suitable baseand having a transverselydisposed hanger-rod at the top, the inner facesof the parallel members having vertical guidetongues, the brackets 4,consisting each of an upper and a lowerbar l adapted to passtransversely through the standards and having grooves at the sides toengage the tongue of the standards, said brackets also having externalguide-bars 4, engaging the edges of 6, provided with a clip or cuff'member 6, 7

adapted to slip over the free end of the lower bar 4, of the brackets41:, the forward end of the bracket 6, having a shoe 6 adapted to engagethe sides of the standard, and the block-and tackle devices forelevating the brackets, all being arranged substantially as shown anddescribed.

6. In a scaffold of the character described, the combination with thestandards and the brackets 4, vertically movable thereon, said bracketshaving vertical sockets at the forward end, of the end brackets 5, saidbrackets having heel portions 5*, adapted to engage the sockets in theforward end of the brackets 4, all being arranged substantially as shownand described.

GEORGE OURLEY.

Witnesses:

H. S. YOUNG, J. E. CLINTON.

